Adding Fractions
To add fractions they must have the same ______.
Denominator
8/12-3/12
5/12
The answer to a multiplication problem is called the _______
Product
the top digit in a fraction
The numerator
What is 21.4 x 5
What is 107.0
When adding fractions with a common denominator, what do you do with the numerators?
ex: 1/3+1/3 =
Add
5/6 - 1/3 =
1/2
To multiply fractions the denominators must be the same. True or False?
False
The bottom digit of a fraction
The denominator
What is 2.25 divided by 5?
When adding fractions with unlike denominators, you must find the ______.
ex: 2/5 +1/10=
least common denominator
When subtracting fractions with a common denominator, what do you do with the numerators?
Subtract
The inverse operation of multiplication.
Division
a fraction with the numerator greater than the denominator
an improper fraction
Multiply 3.56 by 2.8
What is 9.968
2/5+5/9
43/45
9/12-2/8
1/2
0/5 x 15/23
0
A number with a whole number and a fraction
Mixed number
Divide 8.46 by .02
What is 423
4/8 + 2/3
1 1/6
7/8 - 5/6
1/24
When you multiply fractions, you multiply the numerators and do what to the denominators?
Multiply
What does a whole number look like written as a fraction?
A fraction with a denominator of 1
When multiplying how do you determine how many decimal places to move the decimal over?
Count up how many digits are past the decimal point in both numbers
Fractions can be simplified if the numerator and denominator have common _______.
2/4 =( / )
factors
2/9-1/6
1/18
8 x 2/3 =
16/3 or 5 1/3
1/4= x/12
Solve for x.
x=3
When dividing with decimals what happens when you have a decimal inside and outside the division house?
First you slide the decimal over on the number on the outside of the division house till it is gone then slide over the same amount on inside number. If the inside number has the decimal in-between two digits then raise the roof.
1 2/3 + 2 3/4
4 5/12
14 2/5 - 9 3/8
5 1/40
7/10 x 10/10
7/10
2/5=x/10
Solve for x.
4
Multiply 3.43 by 0.34
What is 1.1662
What are the steps to solve: 3/6 + 1/4 ?
1.
2.
3.
4.
1. Find a common denominator: ?/12 and ?/12
2. Add the numerators,
3. Check for common factors,
4. Simplify.
To simplify our answers, we use _________.
Prime factorization
1/2 and 2/4 are what kind of fractions?
A fraction with the same numerator and denominator. 34/34
equivalent form of 1
Divide 8.36 by 2.2
What is 3.8